e85 tuning

[yjmud]

anyone tuning for e85 out there
i would like to go to it for the extra octane

[FordNut]

As far as I know of, nobody is doing it for NA cars.

Some of the other things it usually takes: Bigger injectors, possibly upgraded fuel pumps.

It will also get worse fuel mileage on e85.

[yjmud]

the new 5.0 has a story w/ mach 1 and they said injectors were good enough a fuel mileage loss was not that bad

[FordNut]

As far as I know of, nobody is doing it for NA cars.

Some of the other things it usually takes: Bigger injectors, possibly upgraded fuel pumps.

It will also get worse fuel mileage on e85.

Like I said, on most FI cars I've heard of that were converted, it required injector and fuel system upgrades.


the new 5.0 has a story w/ mach 1 and they said injectors were good enough a fuel mileage loss was not that bad

My experience has been 20-25% lower fuel mileage with e85. Since it's only about 10% cheaper than gas it doesn't really make much sense to me.

[yjmud]

a good tune on e85 had gains of about 30hp over 93 octane tune

[SC Cheesehead]

a good tune on e85 had gains of about 30hp over 93 octane tune

Ummm, you have hard data on this? Hard to believe.

[yjmud]

dacember 09 5.0 starts page 100 they used a 04 mach1 i know that we share motors with the mach1

[SC Cheesehead]

dacember 09 5.0 starts page 100 they used a 04 mach1 i know that we share motors with the mach1

Do you have a link to the article, or can you scan a copy of it and post it up?

The only thing I could find relating to E-85 tunes for mod motors was this ('08 4.6 3V), and it seems to relate more to fuel economy than it does big increases in HP.

http://www.vmptuning.com/forum/showthread.php?t=833

[dohc324ci]

dacember 09 5.0 starts page 100 they used a 04 mach1 i know that we share motors with the mach1


I have that article and have read it. Can you even get E86 where your at? That would be cool running 93 and 30rwhp....but thats only if you can get it and accept the poor fuel economy.

[imorb1994]

Ummm, you have hard data on this? Hard to believe.


Do you have a link to the article, or can you scan a copy of it and post it up?

The only thing I could find relating to E-85 tunes for mod motors was this ('08 4.6 3V), and it seems to relate more to fuel economy than it does big increases in HP.

http://www.vmptuning.com/forum/showthread.php?t=833

http://www.mustang50magazine.com/techarticles/m5lp_0912_2004_mustang_mach_1_ e85_mileage_test
I too have wondered how well it would work with a MM

[Tyrone Minto]

a good tune on e85 had gains of about 30hp over 93 octane tune
I think E85 is 106 octane with less BTUs by volume thus more fuel is needed to get the same HP.
Lidio tuned his Mustang a year or so ago with E85 and a blower but gave up due to inconsistency of the E85 fuel. The supposed 15% gas content varied by a lot.
As octane was not the major reason the gas companies sell it, some have added very low octane gas to the ethanol. Those that have ever mixed 93 and 110 gas soon learn that it only takes a few molecules of the low stuff to detonate and start the some pre ignition problems.
Go for it if you can get some good quality E85.

[SC Cheesehead]

http://www.mustang50magazine.com/techarticles/m5lp_0912_2004_mustang_mach_1_ e85_mileage_test
I too have wondered how well it would work with a MM

Thanks for posting this up. :up:


I think E85 is 106 octane with less BTUs by volume thus more fuel is needed to get the same HP.
Lidio tuned his Mustang a year or so ago with E85 and a blower but gave up due to inconsistency of the E85 fuel. The supposed 15% gas content varied by a lot.
As octane was not the major reason the gas companies sell it, some have added very low octane gas to the ethanol. Those that have ever mixed 93 and 110 gas soon learn that it only takes a few molecules of the low stuff to detonate and start the some pre ignition problems.
Go for it if you can get some good quality E85.

Yeah, the article bears this out, "...For best performance results, the E85 requires the 'Stang's engine to have a richer air/fuel mixture (in some cases, as much as 60-percent more fuel) than it does when it burns premium gas..."

All the same, very interesting concept.

[252life]

I have considered having my car tuned for e85 also (e85 is very popular over here specially on saab turbo cars an increase of 30-40% in fuel consumption is normal on those cars and an increase of 20-50hp)
But I can not accept any more drop in fuel economy, to constantly have to go to the gas station to fill up gets old really fast.
Another downside is the accelerated deterioration of the engine oil, extra oil changes are needed which eats up the money saved on fuel. And e85 does cut down the life of fuel system components.
And there are some negative long therm problems with the oil from the crankshaft ventilation reacting with the ethanol and clogging the injectors, to avoid this every few tanks you use normal gas, easy on a flexfuel car, but on a converted car not so easy because you have to re-tune it again and if you have changed the injectors it's not so easy.